3,5-Dimethylisoxazole-4-carbonyl Chloride → (S)-2-{[(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-7-(3,5-dimethyl-isoxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid

HRID 708764Notes

Reaction equation

HRID 708764 reaction equation
Cl.Cl.C[O:4][C:5](=[O:55])[C@@H:6]([NH:22][C:23]([C@@H:25]1[CH2:34][C:33]2[CH:32]=[C:31]3[O:35][CH2:36][C@H:37]([C:39]4[CH:44]=[CH:43][C:42]([O:45][CH2:46][C:47]5[CH:52]=[CH:51][C:50]([Cl:53])=[C:49]([Cl:54])[CH:48]=5)=[CH:41][CH:40]=4)[O:38][C:30]3=[CH:29][C:28]=2[CH2:27][NH:26]1)=[O:24])[CH2:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[CH:19]=[CH:18][N:17]=[C:16]([CH3:20])[C:15]=2[CH3:21])=[CH:10][CH:9]=1.[CH3:56][C:57]1[C:61]([C:62](Cl)=[O:63])=[C:60]([CH3:65])[O:59][N:58]=1>CCOC(C)=O.C([O-])(O)=O.[Na+]>[Cl:54][C:49]1[CH:48]=[C:47]([CH:52]=[CH:51][C:50]=1[Cl:53])[CH2:46][O:45][C:42]1[CH:41]=[CH:40][C:39]([C@H:37]2[CH2:36][O:35][C:31]3=[CH:32][C:33]4[CH2:34][C@@H:25]([C:23]([NH:22][C@@H:6]([CH2:7][C:8]5[CH:13]=[CH:12][C:11]([C:14]6[CH:19]=[CH:18][N:17]=[C:16]([CH3:20])[C:15]=6[CH3:21])=[CH:10][CH:9]=5)[C:5]([OH:4])=[O:55])=[O:24])[N:26]([C:62]([C:61]5[C:57]([CH3:56])=[N:58][O:59][C:60]=5[CH3:65])=[O:63])[CH2:27][C:28]=4[CH:29]=[C:30]3[O:38]2)=[CH:44][CH:43]=1

Participants

5

Reactant 2

HCID 27362653,5-Dimethylisoxazole-4-carbonyl ChlorideHCID 66719317(S)-2-({(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl}-amino)-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester dihydrochloride

Product 1

HCID 58327116(S)-2-{[(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-7-(3,5-dimethyl-isoxazole-4-carbonyl)-2,3,6,7,8,9-hexahydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl]-amino}-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 516892Sodium BicarbonateSolvent

Procedure

(S)-2-({(3S,8S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-2,3,6,7,8,9-hexa hydro-[1,4]dioxino[2,3-g]isoquinoline-8-carbonyl}-amino)-3-[4-(2,3-dimethyl-pyridin-4-yl)-phenyl]-propionic acid methyl ester bis hydrochloride (25 mg) was dissolved in 1:1 EtOAc and saturated aqueous NaHCO3 and 3,5-dimethyl-isoxazole-4-carbonyl chloride (3 eq.) were added. After stirring at room temperature for 1 hour, the layers were separated and the organic layer was dried over Na2SO4 and evaporated. The residue was purified by over silica (hexanes to 8:2 hexanes-EtOAc to 6:4 hexanes-EtOAc to 6:4 hexanes-EtOAc+2% MeOH to DCM+3% MeOH). The resulting compound was hydrolyzed according to General Procedure B to give the title compound (16 mg). LCMS (m/z): 862.

Workup

  1. additionwere added
  2. customthe layers were separated
  3. dry with materialthe organic layer was dried over Na2SO4
  4. customevaporated
  5. customThe residue was purified by over silica (hexanes to 8:2 hexanes-EtOAc to 6:4 hexanes-EtOAc to 6:4 hexanes-EtOAc+2% MeOH to DCM+3% MeOH)

Sources & evidence

ORD record
ord-38f48c5ec12b4d34bc0dad9a167ea29b
Source dataset
uspto-grants-2015_11
Patent number
US09175003B2

Reaction notes

Loading…